Flanging machine



2 Sheets-Sheet l.

(No Model.)

W. THOM.

PLANGING MACHINE.

N0. 398,674. Patented Feb. 26, 1889.

2 Sheets-Sheet 2.

(No Model.)

W. THOM.

PLANGING MACHINE.

No. 398,674. Patented Feb. 26, 1889.

artnr Fries.

IVIIIIIIAM TIIOM, OF INDIANAPOLIS, INDIANA.

FLANGlNG-NACHINE.

SPECIFICATION forming part of Letters Patent No. 398,674, dated February26, 1889.

Application'filed March 27, 1888. Serial No. 268,714. (No model.)

.To all whom, it 71mg/ concern:

Be it known that I, W'ILLIAM THOM, ot" the city of Indianapolis, countyof Marion, and State ot Indiana, have invented certain new anduset'ulImprovements in Automatic Lock- Seam Elbow Hook FlangingMachines, ot which the following is a specification.

My said invention consists of an automatic machine t'or forming ahook-flange on the edges oi' sheet-metal cylinders, such as are usedinthe manufacture oi stove-pipe elbows, the edges ot which have beenstraighttlanged. on another machine for this purpose,

(shown in an accompanying application filed ot' even date and numbered208,7 13,) and thus produce an elbow the sections of which are united bya lock-seam,7 as shown in Patent No. 365,652, issued to me June 28,ISST.

Referring to the accompanying drawings, which are made a part hereof,and on which similar letters ot' reife/rence indicate similar parts,Figure l is a side plan from the right. Fig. 2 is a :t'ront section fromdotted line 2 2 in Fig. l. Fig. 3 lis a side plan trom the left on thedotted line 3 in Fig. 2. Fig. 4 is a top plan on dotted line l #t inFigs. l, $5, and

Fig. 5 is an enlarged section of the revolving head. Fig. o is a plan ofthe cranklever. Fig. 7 is a section showingI the rockpivot. Fig. S is asection of an elbow as uished by my said machine.

In said drawings, A represents the cast-iron frame, and A', A2, and Athe cross-bars securin said frame together. The drivin gshalt B has itsbearings in the box A, which is secured to the cross-bar Al.

On the shaft B are two pulleys, B being the idler, and B2 thedrivingpulley, which communicates the power through the shaft B andbevel-gears BL Bi to the revolving head E, carrying the cone-rollers II.The head E runs around and upon the central stationary standard, D. Thepinion Bi drives the spurwheel B6 on the counter-shaft- C, which issupported at each end by lug-bearings A5 A5. The cam L is also mountedon said countershatt- C, its periphery traveling on the trietion-rollerK1, which is inserted between the two sides of lever K5, Fig. '7. Theconnectingrod KA1 is provided witlra screw-thread on its lower end andtwo lock-nuts, K", for adj ust ment, The upper end of said connectingrodK11 is secured to the lower end otl the crankdever K3 by pin or bolt Km.The cranklever Kii swings on a fulcrnm at K9 and secured to the lug KS,which is bolted to A. The hood K is secured to the crank-lever Kis byscrew K for adjustment, and is rigidly held by lock-nuts K2.

The lower end of K is provided with a balljoint, l), and is fastened bymeans of screws c c and plate d, so as to permit the hood K to adjustitself to any angle, so as to fit and bear evenly on the top of theelbow-section M. The hollow hub of the head E extends down through thebridge-tree A2, and has its bearings therein and rests on the shoulderE.

The head E is provided with slots E2 for adjustment of the studs E,which support. and bear the cone-rollers II. The rollers II are held onsaid studs by the screws E". rlhe head F is mounted on the top ot' thecentral stationary standard, D, and rests on the spiral spring I, which.is supported by collar .I and set-screw J, and is confined at the topby a washer and machine-screw, F2. On the top ot the east-iron hea-d Fis a steel ring, F3, which forms a seat for the elbow-section M whilebeing operated upon by the rollers II. This ring F3 is renderedadjustable by means of the slots F5, and is secured to said head by thescrews and nuts Fi.

On account of the peculiar angular shape of the elbow-sections it hasheretofore been difficult, even at great expense, to procure aclose-tting and uniform support all around the inside ot' said angularelbow-sections. To accomplish this I set an elbow-section on the top ofthe steel ring, as shown in Fig. 5, and then fill the inside (to theproper depth) with molten metal, F4, which admirably accomplishes thedesired result, and as the metal, F4, wears oft it can be .readilyreplaced, as before. IVhen the hood K is forced down on theelbow-section M, the head F (resting on spiral spring I) yields to saidpressure and slides downward on the standard D. A keyway is eut in thetop of the standard I) and a corresponding one in the hollow hub F, anda splice, D', inserted rigidly in the standard D, so that the IOO head Fmay be permitted to slide up and down on said standard D and yet beprevented from turning by the action of the rollers H.

By means of the adjustment obtained through the slots F5 in head F thesteel ring F2, with the metal, F4, can be set back, so that the throatM2 of 'the elbow-section M can be placed nearer the cone-rollers H4 atM2 and farther away at M, soas to offset and equalize the existingvariation in the distance (owing to the peculiar angle of theelbow-section, the metal at M ruiming toward and the metal at M2 awayfrom the rollers) between the metal Y and cone-rollers at M and M2.

Having thus fully described the construction of my machine, itsoperation may be briefly recapitulated as follows: The machine beingautomatic in its operation, it is only necessary for the operator toinsert and remove the elbow-sections, which is easily done at the rateof one thousand per hour without fatiguing the operator. The machine isset in motion and the elbowsection inserted While the periphery of thecam L is traveling on friction-roller K10 from a to a', during whichtime the hood K remains in position, as shown in Fig. 3; but when theperiphery of the cam at a passes over the friction-roller K10 the leverK5 is suddenly depressed by the action of the cam L, and through saidlever K2 the hood K is brought down on the elbowsection M, which isthereby forced downv on the cone-rollers H, as in Fig. l, and thus thehookflange is formed and the operation completed, the spring N returningthe levers and hood to former position for .repeated operations.

Having thus fully described the construction and operation of my saidmachine, what I claim as new, and desire to secure by Letters Patent, isas follows:

l. In an automatic lock-seam elbow hook- Hanging machine, thecombination of the driving-shaft B, head E, gears B" and B5, conerollersH, vertically-moving head F and adjustable hood K, and means,substantially as described, for pressing said hood against the upperedge ot' the pipe-section, substantially as set vforth and described.

2. In a machine for forming hook-anges, the combination, with thestandard D and the head E, ruiming loosely on said standard, ot" gearingrotating Asaid head, cone-collars H, mounted in said head and adjustablethereon, the head F, splined on the standard D, the spring I, adjustablecollar J, and means, substantially as described, for pressing thepipesection down on the head F, substantially as described.

3. In a machine for forming hook-fianges, the combination, with theshaft B and standard D and with the gears B4 B5, of the countershaft C,gears B3 and B6, the lever K5, connecting-rod K4, the lever K2, the hookK, adj ustably mounted thereon, the head F, splined on the standard Dand having a seat for the pipe-section, the cone-rollers H, head E, andcam L, substantially as described.

4. In a machine for forming hook-flanges, the combination, with thestandard D, of the head E, having slots E2, the cone-rollers H, havingtheir supports adjustable in said slots, gearing for rotating the headE, the head F, splined on the standard D, the spring I, collar J, andmeans, substantially as described, for clamping the pipe-section uponthe head F, substantially as described.

5. In a machine for forming hook-flanges, the combination, with thestandard D and with gears Bl B5, ot the head E, the adj ustablecone-rollers H, the head F, splined on standard D and having the ringF2, and cast ring F4, the spring I, collar J, set-screw J', and means,substantially as described, for clamping the pipe-section upon the headF, substantially as described.

In witness whereof I ha ve hereunto set my hand, at Indianapolis,Indiana, this 3d day of March, A. D. 1888.

W l LLIAM THOM.

ln presence of- AQUILLA Q. JONES, J. W. J oNEs.

